clean up test files

Jenkinsfile

@@ -90,6 +90,7 @@ pipeline {
           script{
             skipstage=sh(script:"git --no-pager diff --name-only FETCH_HEAD develop|grep -v -E '.*md|//src//connector|Jenkinsfile|test-all.sh' || echo 0 ",returnStdout:true) 
           }
+          rm -rf ${WORKSPACE}.tes
           }
       }